Improved die for forming thill-irons



UNITED STATES PATENT OFFICE.

vF. B. MORSE, OF PLANTSVILLE, CONNECTICUT.

IMPROVED DIE FOR'FORMING THlLL -|RONS..

Specification forming part of Letters Patent No. 96,250, dated October 26, 1869.

'o ait whom t't may concern:

Be it known that I, F. B. MORSE, of Plantsville, in the county of Hartford and State of Connecticut, have invented a new Improvement in Dies for Forging Thill-lrons 5 and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, aud which said drawings constitute part of this specification, and represent, in

Figure 1, a perspective view ofthe lower die 5 Fig. 2, a perspective view of the upper die, and in Fig. 3 a side view of the iron.

This invention relates to au improvementin the article of manufacture known to the trade as thill-irons-that is, irons which are attached to the shafts or pole of a carriage to secure them to the shackle on the carriageaxle.

Heretofore these irons have been forged in various ways, and when forged in dies the dies have been straight upon the meeting surfaces, so that the fin occasioned by the joint between the upper and lower die would be formed centrally, or nearly so, along the sides of the iron. Consequently the trimming-die leaves a line or distinct mark which materially affects the appearance ofthe iron.

My invention consists in forming the dies so that the fin is left at the edge upon the upper surface, and therefore, when trimmed, does not disfigure the iron, and at the same time to give the required curvature to the iron, which has heretofore been done after the iron has been taken from the die.

A, Fig. 1, is the lower die, its surface wrought to the form for the upper side of the thill-iron from the head, and a recess, a, formed therein corresponding to one-half the head, and upon the surface of the curved portion of the die, A

as at d, a recess is formed of the shape and size required for the iron. The corresponding die B is formed upon its surface to correspond to the die A, with a recess,f, for the formation of the other half of the head, and from the recess f the die is plain or smooth, as seen in Fig. 2. Hence, in striking up the metalbetween the two dies the fin is left along the uppei` edge, as seen iu Fig. 3, the/dies at the same time giving to the iron the proper curvature, so that it comes from the dies complete, requiring no further labor (as an article of manufacture) than trimming.

I claim as my invention- The dies constructed as herein described for forging thill-irons.

F. B. MORSE.

Witnesses:

A. J. TIBiTs, J. H. SHUMWAY. 

